<div style="position: fixed;top: 70px;left:50px;">
	<h1 class="page-heading">博客</h1>
	<br />
	<ul class="" style="font-size: 16px;list-style: none;">                
       <li>
          <a  href="{{ '/categories/' | prepend: site.baseurl }}">大类分解</a>
        </li>
        <br>
        <li>
          <a  href="{{ '/tag' | prepend: site.baseurl }}">小类内聚</a>
        </li>             
    </ul>
</div>
